US2668023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape winding
Assignee: 3M Co
•
Filing: 1947-10-29
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Granted: 1954-02-02
•
Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Lee S Whitson
- 👤 Mathias G Tometz
- 👤 Jr Bernard G Ferlaak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:38
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/2207; B65H19/2215; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/418; B65H2301/4181; B65H2301/41816; B65H2301/4182; B65H2301/41822; B65H2408/00; B65H2408/20; B65H2408/23; B65H2408/231; B65H2408/2315; B65H2408/23152; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1829286A
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US1265329A
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US1262671A
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US1467841A
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US1963327A
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US1934913A
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US1969525A
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US2059398A
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US1958068A
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US1889546A
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US2029446A
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US2200000A
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US2171667A
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US2140755A
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US2385691A
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US2403147A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |